anyone recognize these bolt head markings?

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    anyone recognize these bolt head markings?

    Were holding the front leaf springs to the axle on my 33. I'm pretty sure they aren't original, but they are neat looking :-) Everything I've seen on the truck is grade 8 (with the "normal" grade 8 markings, 6 lines), so I'm assuming these are as well.

    Click image for larger version  Name:	bolthead.jpg Views:	0 Size:	163.2 KB ID:	20429
    - Buck

    #2
    I've never seen any like that before. Maybe "Made in China" specials.

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      #3
      Grade 8 bolts weren't used in 1930's cars at the most grade 5 but mostly grade 2.

      Heads weren't marked as such back in the 1930's.

      Mostly just flat without any indentaindentation or raised number or lines.


      Originally posted by dnsfailure View Post
      Were holding the front leaf springs to the axle on my 33. I'm pretty sure they aren't original, but they are neat looking :-) Everything I've seen on the truck is grade 8 (with the "normal" grade 8 markings, 6 lines), so I'm assuming these are as well.

      Click image for larger version Name:	bolthead.jpg Views:	0 Size:	163.2 KB ID:	20429

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        #4
        No, but they look really expensive and really cheap at the same time.

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          #5
          See if you can find it in here....



          http://www.idot.illinois.gov/Assets/...ationguide.pdf
          Hey, don't lob factual statements at me as if they're insults

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            #6
            Originally posted by PAE View Post
            Grade 8 bolts weren't used in 1930's cars at the most grade 5 but mostly grade 2.
            Yeah, sorry I should have mentioned, the truck is not factory original, it's been restored/modified at least once (and I'm in the process of doing it over myself!). Whoever did the work on it before me put grade 8 bolts in EVERYTHING. Everything from the timing cover, to the license plate holder. EVERYTHING has grade 8, kinda neat

            I'm hoping these aren't cheap import bolts, because they look so neat. 95% of the other bolts have the standard 6 mark pattern on them that I'm used to seeing.
            - Buck

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              #7
              Originally posted by Pukemaggots View Post
              someone on another board posted that as well, I've looked through it (and another a similar one) and didn't find anything that looked similar.

              I'm guessing these are cheap imports But I'm gonna keep them regardless, because they look neat
              - Buck

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                #8
                Ive seen back in the day guys going to the expence of buying original bolts and rejecting the goodness of grade 8 because of judging at points events..

                Insane But its their game and they pay to be judged for that little dash ornament.

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                  #9
                  Run a file across the shank of one and compare it's drag & damage to known graded bolts. If they're hard then reuse them. Hell is likely reuse them anyway since they're likely harder than the material on the hangers they're passing through.

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                    #10
                    Originally posted by DWT View Post
                    Run a file across the shank of one and compare it's drag & damage to known graded bolts. If they're hard then reuse them. Hell is likely reuse them anyway since they're likely harder than the material on the hangers they're passing through.
                    Good idea! I'm not putting the leaf springs back on (going IFS), but I'm definitely keeping all the hardware that I remove (always do..)
                    - Buck

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                      #11
                      Originally posted by dnsfailure View Post

                      but I'm definitely keeping all the hardware that I remove (always do..)
                      As do I, and that's partly why my garage and all my storage containers are full.

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                        #12
                        Originally posted by shortbus4x4 View Post
                        As do I, and that's partly why my garage and all my storage containers are full.
                        I'm sure it's some sort of disease... oh well. haha
                        - Buck

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                          #13
                          Those were possibly made in India. Red dot of course.

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                            #14
                            Originally posted by dnsfailure View Post

                            I'm sure it's some sort of disease... oh well. haha
                            My wife says it is and she says it like it's a bad thing. But women don't appreciate the finer things in life, like boxes and buckets full of old hardware and such that might come in useful some day.

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                              #15
                              I’m not great with Roman numerals but I think those are grade 11.

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